HDFC Securities is Equity Trading Company of HDFC Bank. This is one of the largest broker in India. HDFC Securities trading account provide a unique 4-in-1 feature that integrates your HDFC Securities trading account with your existing HDFC bank savings account, Demat account and your Investment account. Funds / shares are seamlessly moved from the linked Demat/Bank account to execute the transactions. It also help in easy transfer and withdrawal of funds.